Research has shown that stress can physically reshape the brain, causing both extensive and long-lasting damage to the human brain. Brain cells can shrink and the connections between neurons can decrease. In short, stress causes big changes to the human nervous system. In 2008, new knowledge regarding the effects of short-term stress were measured at University of California, Irvine, and breakthrough research on the effects of long-term, chronic stress were conducted at the University of Wisconsin, Milwaukee.

According to nutritionist Paavo Airola, we should not eat potatoes that have any green tint and he mentioned a toxin called solanine (a nerve toxin) as the reason why. Potatoes often develop this green tint after exposure to light in the supermarket, but farming and harvesting practices play a role as well.